The Chipsets

VIA originally introduced the P4X266 chipset in August of last year but the
true cash cow for VIA would end up being the P4M266. The reasoning is simple;
major OEMs want highly integrated solutions and they're willing to order in
much larger quantities than end users.

More recently, VIA introduced the P4X266A which boasted an improved memory
controller that resulted in small real world performance improvements. The P4X266A
North Bridge is pin compatible with the P4X266 North Bridge meaning that all
of the boards seen here today can easily be modified by the manufacturer to
use the new chip.

For the specs and details about the chipset itself we'll refer you back to
our
original P4X266 review since we're going to focus on the roundup of the
individual motherboards alone in this article.